LNK3204D-TL Power Integrations LinkSwitch-TN2 Offline Switcher IC
LNK3204D-TL belongs to the LinkSwitch-TN2 family and is best compared with parts that share the same 725V offline switcher platform but differ in package or output-current capab…
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Technical Specifications
LNK3204D-TL Power Integrations LinkSwitch-TN2 Offline Switcher IC technical specifications.
General
Alternate Parts Comparison (LNK3204D-TL vs LNK3204P vs LNK3202D vs LNK3205D vs LNK3294G)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|---|
| Auto Restart and Overvoltage Response | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart |
| Breakdown Voltage | 725 V | 725 V | 725 V | 725 V | 900 V |
| Control Features | Selectable Current Limit, Frequency Jittering, Soft Start, On/Off Control | Selectable Current Limit, Frequency Jittering, Soft Start, On/Off Control | Selectable Current Limit, Frequency Jittering, Soft Start, On/Off Control | Selectable Current Limit, Frequency Jittering, Soft Start, On/Off Control | Frequency Jittering, On/Off Control, Selectable Current Limit, Soft Start |
| Control Scheme | Primary-side | Primary-side | Primary-side | Primary-side | Primary-side |
| Current Output Max Ccm 230v | 170 mA | 170 mA | 80 mA | 270 mA | 170 mA |
| Current Output Max Ccm Univ | 170 mA | 170 mA | 80 mA | 270 mA | 170 mA |
| Current Output Max Mdcm 230v | 120 mA | 120 mA | 63 mA | 175 mA | 120 mA |
| Current Output Max Mdcm Univ | 120 mA | 120 mA | 63 mA | 175 mA | 120 mA |
| Max Input Voltage | 265 V | 265 V | 265 V | 265 V | 265 V |
| Max Operating Temp | -- | -- | -- | -- | -- |
| Min Input Voltage | 85 V | 85 V | 85 V | 85 V | 85 V |
| Min Operating Temp | -- | -- | -- | -- | -- |
| Mounting Type | Surface Mount | Through Hole | Surface Mount | Surface Mount | Surface Mount |
| Output Profile | CV | CV | CV | CV | CV |
| Over Temperature Response | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic |
| Package | SO-8C | PDIP-8C | SO-8C | SO-8C | SMD-8C |
| Product Family | LinkSwitch-TN2 | LinkSwitch-TN2 | LinkSwitch-TN2 | LinkSwitch-TN2 | LinkSwitch-TN2 |
| Product Type | IC | IC | IC | IC | IC |
| Protection Features | Input Overvoltage, Output Open Loop, Output Overload, Output Overvoltage, Output Short Circuit, Overtemperature | Input Overvoltage, Output Open Loop, Output Overload, Output Overvoltage, Output Short Circuit, Overtemperature | Input Overvoltage, Output Open Loop, Output Overload, Output Overvoltage, Output Short Circuit, Overtemperature | Input Overvoltage, Output Open Loop, Output Overload, Output Overvoltage, Output Short Circuit, Overtemperature | Input Overvoltage, Output Open Loop, Output Overload, Output Overvoltage, Output Short Circuit, Overtemperature |
| Secondary Response | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart |
| Topology | Buck-Boost, Flyback | Buck-Boost, Flyback | Buck-Boost, Flyback | Buck-Boost, Flyback | Buck-Boost, Flyback |
| MSL Rating | 1 | -- | 1 | 1 | 3 |
| Rdk Available | RDK-506 | RDK-506 | RDK-623 | -- | RDK-737 |
| Action |
LNK3204D-TL is part of the Power Integrations LinkSwitch-TN2 family and is best compared with devices that share the same offline switcher architecture but differ in package, output-current capability, or voltage rating.
LNK3204G-TL and LNK3204P are the closest alternatives, mainly differing in package style. LNK3202D-TL is suitable for lower-current designs, while LNK3205D-TL, LNK3206D-TL, and LNK3207D-TL offer increased current capability for higher-power applications. LNK3294G is a related 900V option for designs requiring additional voltage margin or improved surge robustness.
Power Integrations LNK3204D-TL Power Integrations LinkSwitch-TN2 Offline Switcher IC Overview
LNK3204D-TL is a Power Integrations LinkSwitch™-TN2 highly efficient offline switcher IC designed for low component-count, non-isolated power supply designs. It integrates a high-voltage power MOSFET with controller functions and system-level protection, helping designers replace traditional linear or capacitive-dropper power supplies with a more efficient and reliable switching solution. The device supports buck, buck-boost, and flyback topologies, making it suitable for compact AC/DC auxiliary power supplies in appliances, industrial controls, smart meters, standby power circuits, and other space-constrained electronic systems.
The LNK3204D-TL operates at a 66 kHz switching frequency and features a 725 V breakdown rating, 69% duty cycle, integrated current limiting, over-temperature protection, over-voltage protection, and short-circuit protection. Supplied in a surface-mount SO-8C / 8-SOIC package with tape-and-reel packaging, it is well suited for automated PCB assembly and cost-sensitive high-volume power supply applications.
Key Features
LinkSwitch™-TN2 offline switcher IC
Integrated high-voltage MOSFET
725 V breakdown voltage
66 kHz switching frequency
Supports buck, buck-boost, and flyback topologies
Non-isolated AC/DC power supply design
69% maximum duty cycle
Integrated current limit protection
Over-temperature, over-voltage, and short-circuit protection
Surface-mount SO-8C / 8-SOIC package
Tape & reel packaging for automated assembly
Target Applications
Non-isolated AC/DC power supplies
Home appliance auxiliary power supplies
Industrial control power circuits
Smart meters and utility metering
Standby and bias power supplies
Low-power offline converters
Compact replacement for linear or capacitive-dropper supplies
LNK3204D-TL is a Power Integrations LinkSwitch-TN2 offline switcher IC in an SO-8C surface-mount package. It integrates a 725V power MOSFET and controller functions to simplify low-power AC/DC converter design. Supporting buck, buck-boost, and flyback topologies, it is suitable for compact non-isolated power supplies used in appliances, industrial controls, metering equipment, standby circuits, and other cost-sensitive applications requiring efficient operation, protection features, and reduced external component count.
